Question

5.00×10−3 mol of HBr are dissolved in water to make 14.0 L of solution. What is the concentration of hydroxide ions, [OH−], in this solution?

Answer 1

Answer:

2.85×10-11

Explanation:

[H+] = (5× 10^-3)/14

= 0.35×10-3 M

[OH-] ×[H+] = 10-14

[OH] = 10-14/ 0.35×10-3

= 2.85× 10-11 M